VigorSwitch P2260 User’s Guide
50
IGMP Snooping Status
Function description:
IGMP is used to snoop the status of IP multicast groups and display its associated
information in both tagged VLAN and non-tagged VLAN networks. Enabling IGMP with
either passive or active mode, you can monitor the IGMP snooping information, which
contains the multicast member list with the multicast groups, VID and member port.
Parameter description:
Snooping Mode:
The switch supports three kinds of IGMP Snooping status,
including “Passive”, “Active” and “Disable”.
Disable
-
Set “Disable” mode to disable IGMP Snooping function.
Default: Disable
Active
-
In Active mode, IGMP snooping switch will periodically
issue the Membership Query message to all hosts attached to
it and gather the Membership report message to update the
database of the Multicast table. By the way, this also reduces
the unnecessary multicast traffic.
Passive
-
In Passive Snooping mode, the IGMP snooping will not
periodically poll the hosts in the groups. The switch will
send a Membership Query message to all hosts only when it
has received a Membership Query message from a router.
IP Address:
Show all multicast groups IP addresses that are registered on
this device.
VLAN ID:
Show VLAN ID for each multicast group.
Member Port:
Show member ports that join each multicast group. Member
port may be only or more than one.
